All FC3 missiles are messed up ATM. They decided to implement an advanced flight model for missiles that even includes keeping track of the missile's fuel, battery, hydraulics, etc. Unfortunately the guidance system is trash, making the missiles waste their energy right off the rail. Not only that, I heard the developer was basing the missiles' performance off of Russian air force tactics instead of physics. It seems to me that they have a twisted (or should I say old?) way of thinking, and I have little hope for them getting it fixed any time soon even after all this time.
As for study sim planes, there has never been an air-to-air fighter until the mig-21, which doesn't have a prayer against an F-15C, and now the Mirage 2000C, which does not have active radar missiles and was completely broken when it was released. You may be thinking of the advanced flight model that was given to the F-15 and Su-27. Not to be confused with advanced systems modeling. So no clickable cockpit, actual data-link, etc.
Fact is, a study-sim F-15C would have a much greater advantage over an FC3 F-15C because it would have more tools at its disposal for the fight like the data-link, radar that works better (track-while-scan is supposed to have an automatic pulse-frequency but doesn't in FC3, you have to change it manually and it won't show which one you're on), etc.
